申请人:Hoffmann-La Roche Inc.
公开号:US04455311A1
公开(公告)日:1984-06-19
Imidazoquinazolines of the formula ##STR1## wherein one of R.sup.1 or R.sup.2 is hydrogen, chlorine, bromine, C.sub.1-4 -n-alkyl or C.sub.1-4 -n-alkoxy and the other is --N(R,R"), wherein R and R" are C.sub.1-4 -n-alkyl or R and R" taken together are tetramethylene or pentamethylene, and R.sup.3 and R.sup.4, independently, are hydrogen or methyl, their tautomers, when R.sup.3 and/or R.sup.4 are other than hydrogen, enantiomers thereof, as well as physiologically compatible acid addition salts of such compounds are described. The foregoing compounds inhibit the aggregation of blood platelets, inhibit gastric secretion or have activity on the circulatory system. Such compounds are prepared starting from the corresponding 4-benzylimidazo[1,2-a]quinazolin-2(1H)-ones in which the benzyl group is optionally substituted in the ortho- or para-position by C.sub.1-4 -alkyl or C.sub.1-4 -alkoxy.
化学式为##STR1##的咪唑喹唑啉类化合物被描述,其中R.sup.1或R.sup.2中的一个是氢、氯、溴、C.sub.1-4 -n-烷基或C.sub.1-4 -n-烷氧基,另一个是--N(R,R"),其中R和R"是C.sub.1-4 -n-烷基或R和R"组合在一起是四亚甲基或五亚甲基,而R.sup.3和R.sup.4分别是氢或甲基,它们的互变异构体,当R.sup.3和/或R.sup.4不是氢时,它们的对映异构体,以及这种化合物的生理兼容性酸盐。上述化合物抑制血小板聚集,抑制胃分泌或对循环系统具有活性。这些化合物是从相应的4-苄基咪唑[1,2-a]喹唑啉-2(1H)-酮开始制备的,其中苄基可以在邻位或对位上以C.sub.1-4-烷基或C.sub.1-4-烷氧基进行置换。